Hud Symbology for Surface Operations: Command Guidance Versus Situation Guidance Formats

Document Number: 2002-01-3006

Date Published: November 2002

Author(s):
David C. Foyle - NASA Ames Research Center
Becky L. Hooey - Monterey Technologies Inc.
Walter A. Johnson - Rockwell Collins Flight Dynamics
John R. Wilson - San Jose State University

Abstract:
This study investigated pilots' taxi performance, situation awareness and workload while taxiing with three different head-up display (HUD) symbology formats: Command- guidance, Situation-guidance and Hybrid. Command-guidance symbology provided the pilot with required control inputs to maintain centerline position; Situation-guidance symbology provided conformal, scene-linked navigation information; while the Hybrid symbology combined elements of both symbologies. Taxi speed, centerline tracking accuracy, workload and situation awareness were assessed. Taxi speed, centerline accuracy, and situation awareness were highest and workload lowest with Situation-guidance and Hybrid symbologies. These results are thought to be due to cognitive tunneling induced by the Command-guidance symbology. The conformal route information of the Situation-guidance and Hybrid HUD formats provided a common reference with the environment, which may have supported better distribution of attention.

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Product Status: In Stock

See other papers presented at World Aviation Congress _® & Display, November 2002, Phoenix, AZ, USA, Session: Perspective Displays

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